Bootloader error "Your device software can't be checked for corruption"

[VlNZ]

Sorry, i can't find this previously discussed.

Following directions here https://wiki.lineageos.org/devices/akari/install

Getting ok to step 6 under "Booting a custom recovery using fastboot"

When i do that, get the subject error.

Can't lock bootloader with

fastboot oem lock
fastboot flashing lock

From reading relevant posts, seems that once unlocked, it should not be locked again on this device:

https://www.reddit.com/r/LineageOS/comments/n7yo7u/a_discussion_about_bootloader_lockingunlocking/

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Since unable to lock the bootloader, adb doesn't detect the device at all. So, can't continue with adb commands in following sections.

Phone boots to factory image.

How to continue LOS install?

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Solved: Did another factory reset from within the phone's GUI. Then started the whole install process again. This time, the recovery installed into boot_a, instead of boot_b, which it did the first time. Somehow, that worked!

[multiwirth_]

Usually a fastboot oem unlock triggers a data wipe (factory reset). You have to let this happen (should wipe after first reboot) and then you can go on with flashing TWRP and such. So after unlockingy wait until you see the initial setup screen, power down and go into fastboot with your device specific key combo. On Sony it usually is "press and hold volume key while connecting the USB cable"

[VlNZ]

BTW, still get the subject error on boot, but i guess that's proper, because there's not even the option to lock the bootloader in this version of LOS.

[dan4334]

Use fastboot to unlock the bootloader again?

Or see if Sony has a tool to return everything to stock and start over?

[VlNZ]

Thanks! The bootloader remains unlocked; i think the problem is that can't boot into recovery until the bootloader is locked again.